2d.imageData.object.clamp.worker.js (1690B)
1 // DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. 2 // OffscreenCanvas test in a worker:2d.imageData.object.clamp 3 // Description:ImageData.data clamps numbers to [0, 255] 4 // Note: 5 6 importScripts("/resources/testharness.js"); 7 importScripts("/html/canvas/resources/canvas-tests.js"); 8 9 var t = async_test("ImageData.data clamps numbers to [0, 255]"); 10 var t_pass = t.done.bind(t); 11 var t_fail = t.step_func(function(reason) { 12 throw reason; 13 }); 14 t.step(function() { 15 16 var canvas = new OffscreenCanvas(100, 50); 17 var ctx = canvas.getContext('2d'); 18 19 var imgdata = ctx.getImageData(0, 0, 10, 10); 20 21 imgdata.data[0] = 100; 22 imgdata.data[0] = 300; 23 _assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255"); 24 imgdata.data[0] = 100; 25 imgdata.data[0] = -100; 26 _assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0"); 27 28 imgdata.data[0] = 100; 29 imgdata.data[0] = 200+Math.pow(2, 32); 30 _assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255"); 31 imgdata.data[0] = 100; 32 imgdata.data[0] = -200-Math.pow(2, 32); 33 _assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0"); 34 35 imgdata.data[0] = 100; 36 imgdata.data[0] = Math.pow(10, 39); 37 _assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255"); 38 imgdata.data[0] = 100; 39 imgdata.data[0] = -Math.pow(10, 39); 40 _assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0"); 41 42 imgdata.data[0] = 100; 43 imgdata.data[0] = -Infinity; 44 _assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0"); 45 imgdata.data[0] = 100; 46 imgdata.data[0] = Infinity; 47 _assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255"); 48 t.done(); 49 }); 50 done();